Quick-acting woodworking-vise.



Patented Nov. 9,1909.

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4 APPLICATION FILED JULY 10, 1909.

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UNITED STATES PATENT OFFICE.

WALTER Y. MENTZER, OF GRAND RAPIDS, MICHIGAN, ASSIG-NOR TO OLIVERMACHINERY COMPANY, OF GRAND RAPIDS, MICHIGAN, A CORPORATION OF MICHIGAN.

QUICK-ACTING WOODWORKING-VISE.

Specification of Letters Patent.

Patented Nov. 9, 1909.

Application filed July 10, 1909. Serial No. 506,874.

To all whom it may concern:

Be it known that I, lVAL'rER Y. MnN'rzeR, a citizen of the United Statesof America, residing at Grand Rapids, in the county of Kent and State ofMichigan, have invented certain new and useful Improvements inQuick-Acting lVoodworking-Vises; and I do hereby declare the followingto be a full, clear, and exact description of the inven tion, such aswill enable others skilled in the art to which it appertains to make anduse the same.

My invention relates to improvements in quick acting woodworking Vises,and its object is to provide the same with various new and usefulfeatures hereinafter more fully described and particularly pointed outin the claims.

My invention consists essentially of a fixed jaw having a plate adaptedto be attached to a bench, a stirrup beneath the plate, a half nutmounted in the stirrup, a movable jaw, parallel guide rods rigidlyattached thereto, a rotative screw having threads adapted to engage thehalf nut, and a pivoted yoke in which the screw and rods are slidable;and in various features of combination and arrangement, as will morefully appear by reference to the accompanying drawing, in which: A

Figure l is a longitudinal vertical section of a device embodying myinvention taken on the line 11 of Fig. 4;; Fig. 2 a portion of Fig. lwith the parts adjusted to detach the screw from the nut; Fig. 3 atransverse section of the device on the line 3-3 of Fig. 1; and, Fig. 4:an inverted plan view of the device detached from the bench.

Like numbers refer to like parts in all of the figures.

1 represents the top of a woodworking bench; 2 a fixed jaw attachedthereto by means of a horizontally disposed plate 2 extending beneaththe said top and integral with the jaw 2.

3 represents the movable jaw in which are rigidly inserted parallelguide rods l spaced apart and extending at the respective sides of ascrew 5, rotatively mounted in said jaw.

8 is a yoke beneath the plate 2 and pivoted to the same near the rearthereof as at 9. The screw 5 is longitudinally movable in said yoke, andthe guide rods 4 also extend through tubular side portions 8 of theyoke, and are slidable therein. Extending downward from the plate 2 nearthe front thereof, surrounding the screw 5 and spaced apart therefrom,is a stirrup 7 in which is secured a half-nut 6 by means of a lug 6*.This stirrup supports the screw, the guide rods, and the yoke in ahorizontal position when the screw is engaged with the half nut, and bylifting the movable jaw 3, the yoke will turn on the pivots 9 and thescrew be raised clear of the half nut, whereupon the screw and guiderods will slide freely within the yoke to quickly adjust the vise todifferent dimensions of work.

The screw 5 and half nut 6 are made with buttressed threads, theengaging and working surfaces of which are at right angles to the axisof the screw, whereby the screw has no tendency to slip out ofengagement with the half nut when the vise is tightened on the work.

\Vhat I claim is 1. A quick acting vise, comprising a fixed jaw, astirrup below the same, a half nut in the stirrup, a movable jaw, ascrew rotative in the movable j aw and laterally engaging the half nut,and a pivoted yoke in which the screw is slidable.

2. A quick acting vise, comprising a fixed jaw and amov. ble jaw, guiderods fixed in the movable jaw and spaced apart, a screw between theguide rods and rotative in the movable jaw, a stirrup surrounding thescrew and spaced apart therefrom, a half nut in the stirrup laterallyengaged by the screw and supporting the same, a yoke pivoted at the rearand vertically movable at the front, in which yoke the guide rods andscrew are slidable longitudinally.

3. A quick acting-vise, comprising a fixed jaw, a horizontally disposedplate integral therewith, a movable jaw, guide rods spaced apart andfixed in the movable jaw, a screw between the guide rods and rotative inthe movable jaw, a stirrup on the plate supporting the screw, a half nutin the stirrup beneath the screw, and a yoke pivoted to the plate at therear of the stirrup and having tubular side portions in which the guiderods are slidable.

4. A quick acting vise, comprising a fixed jaw having an integral plateto attach to the under side of a bench top, a movable jaw opposite thefixed jaw and extended below the plane of the plate, parallel guide rodsspaced apart and fixed in the movable jaw,

a screw between said rods and rotatiire in the transverse portions inwhich the screw is movable jaw, a stirrup depending near the slidable.10 front of the plate and supporting the screw, In testimony whereof Iafiix my signature a half nut in the stirrup and laterally enin presenceof two witnesses.

5 gaged by the screw, a yoke pivoted to the WALTER Y. MENTZER.

rear of the plate extending forward there- Witnesses: from and havingtubular side portions in H. O. VAN ANTWERP,

which the rods are slidable, and also having GEORGIANA CHACE.

